Dragon Ball was using capsules to store things long before Pokemon did. And Dragon Ball Z, which ended in Japan in '96 had already done storing 'creatures in capsules. Saibamen for one. And after the Saiyan saga Bulma puts her dead friends in coffin capsules.
Also, Iron Bands of Bilarro in DnD 5e, but I’m not sure how far back the history of that item goes. DnD 3.5 had Iron Flask that works kinda the same, but Iron Bands is more similar to a Pokeball.
Dragon Ball was using capsules to store things long before Pokemon did. And Dragon Ball Z, which ended in Japan in '96 had already done storing 'creatures in capsules. Saibamen for one. And after the Saiyan saga Bulma puts her dead friends in coffin capsules.
So Akira Toriyama did it before Pokemon.
Also, Iron Bands of Bilarro in DnD 5e, but I’m not sure how far back the history of that item goes. DnD 3.5 had Iron Flask that works kinda the same, but Iron Bands is more similar to a Pokeball.